Display cartons



yR. E. FINK DISPLAY CARTONS Filed oct. 25, 1955 Aug. s, 1957 2,801,783

FIG. 3

x20 ATTORNEYS United States Patent O DISPLAY CARTONS Raymond E. Fink, East Haven, Conn., assignor to The New Haven Board & Carton Company, New Haven, Conn., a corporation of Connecticut Application October 25, 1955, Serial No. 542,715

1 Claim. (Cl. 229-16) This invention relates to cartons for display purposes and is concerned more particularly with a novel carton, which has large windows for exposure of its contents and, at the same time, is of the desired strength and rigidity and can be easily loaded. The carton is made from a blank, which requires a minimum quantity of paperboard, and it can be glued by simple gluing operations to form a collapsed tube. When the tube is squared in erecting the carton, the windows are automatically formed and their formation does'not leave loose flaps within the interior of the carton which would interfere with load- For a better understanding of the invention, reference may be made to the accompanying drawing, in which Fig. l is a View in perspective of the erected carton, with the top closed;

Fig. 2 is a View in perspective of the carton at one stage in its erection; and

Fig. 3 is a plan view with parts broken away of the blank of which the carton is made.

The carton of the invention is made of a blank of paperboard, which comprises a side wall lying between a front wall 11 and a back wall 12 and connected thereto along crease lines 13 and 14, respectively. A second side wall 15 is connected along a crease line 16 to the back wall 12 and a glue yflap 17 is connected along a crease line 18 to the front wall 11. The front and back walls are alike and the side walls are also alike. In the carton illustrated, all the walls are of the same size, so that the carton is square in cross-section. At their tops, the walls are provided with flaps indicated collectively at 19 and foldable inwardly upon one another to close the top of the carton. Similarly, the walls are provided at their lower ends with flaps generally designated 20 and foldable inwardly upon one another to close the bottom of the carton. The top and bottom flaps may be of any desired form and the carton blank may be made with either the front or the back wall lying at one end, the glue ap being attached to whichever of the front and back walls is at the end of the blank.

A ap 21 is cut from the front wall 11 and is secured to the side wall 10 along the crease line 13. The ap extends wholly across the front wall and, in -the blank, is severed wholly from the front wall and connected to the glue flap only at the small nicks 21a. A similar flap 22 is cut from the back wall and is secured to the side wall 15 along crease line 16 and to the side wall 10 at the nicks 22a. The aps 21, 22 are of a width not greater than the side walls and, when the flaps 21, 22 are folded out of the plane of the front and back walls, the walls have windows, through which the contents of the carton are visible.

In gluing and folding the blank to produce the carton Patented Aug. 6, 1957 ICC tube, the blank is fed forward with the inner surface up and glue is applied to the glue flap 17 and to areas on the side walls 10 and 15 corresponding generally in shape and size to the flaps 21 and 22. The blank is next folded on crease lines 13 and 16 to cause glue flap 17 to overlie side wall 15 and the front wall 11 and the side wall 15 then lie in a plane and opposed, respectively, to the side wall 10 and the back wall 12 also lying in a plane. Pressure is now applied to cause the glue flap to be secured to the side wall 15 and the aps 21 and 22 to be secured to the inner faces of the side walls 15 and 10, respectively. The blank is now a at tube with the crease lines 13 and 16 at its outer edges. When pressure is applied to the tube to move the crease lines 13 and 16 toward each other, the tube is squared and, in this operation, the nicks 21a on ap 21 and the :nicks 22a on flap 22 are broken and the flaps remain afxed to the inner faces of side walls 15 and 10, respectively, adding stilness and rigidity to these walls.

When the carton is to be loaded, the aps 20 at the bottom of the carton are folded upon one another and secured together to close the bottom. The object, such as a bottle, is then inserted into the carton through the top, after which the top aps are turned in and secured together. In this loading operation, the flaps 21 and 22 offer no interference to the insertion of the object,

Y since the flaps are secured to the inner faces of the side walls. With the flaps cut from the front and back walls and extending entirely across those walls, the carton would be too lacking in rigidity to be satisfactory but for the stitfening of the side walls by the securing of the aps 21, 22 thereto. The double thickness of board extending from one edge of the side walls to the other makes the carton rigid, so that it can be easily handled in loading operations. The windows are thus formed in the front and rear walls of the carton wthout sacrice of any of the necessary and desirable features of the 'carton.

I claim:

A display carton which comprises a pair of like front and back walls, a pir of like side walls, the walls being hinged to one another along vertical crease-lines, the front and back walls having a width not exceeding that of the side walls, flaps for closing the top and bottom of the carton connected to the upper and lower ends of the walls, a ap cut from the front wall and connected to one side wall along a vertical crease line alinged with the crease line between the front and said one side wall, and a second flap cut from the back walland connected to the other side wall along a corresponding line aligned with the crease line between the back and said other side wall, said front and back wall flaps being of a width substantially equal to the width of the front and back walls, the front and back wall aps being folded inwardly and secured to the inner faces of the side walls to which they are connected.

References Cited in the le of this patent UNITED STATES PATENTS 

